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Diapason Audio Generator

Diapason Audio Generator

Audio generation since 2010

1 ratings
7 reviews
πŸ”§ Utilities
🎡 Music
$1.99

Details

  • Released
  • Updated
  • January 26, 2010
  • November 2, 2025

Features

Developer

Fabien Lefebvre
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Diapason Audio Generator screenshot #1 for iPhone
Diapason Audio Generator screenshot #2 for iPhone
Diapason Audio Generator screenshot #3 for iPhone
Diapason Audio Generator screenshot #4 for iPhone
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About

Generate various audio test tones, including sine waves, noise, and more. Combine up to four independent sources with phase control for each speaker. Monitor waveforms and output power with clipping indication.

βœ“Multiple test tone types (sine, square, triangle, sawtooth, noise)
βœ“Combine up to 4 independent audio sources
βœ“Phase switch for each speaker channel
βœ“Frequency sweeping and musical scale alignment
βœ“Narrow band noise generation
βœ“Waveform viewer
βœ“RMS power and clipping indication
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What's New in Diapason Audio Generator

2.8

November 2, 2025

Display has been optimised for various screen sizes.

User reviews

Most RecentHighest RatedLowest Rated

Another fantastic App!

Works great! Bought this app just for fun after using the creators SPLnFFT noise level meter for an environmental noise study I did. Both apps are solid.
swensenaswensena

Was good app; Won't work OS 5 or 5.01 V1.4 iPhone 4

I hope app designer can fix; this has been a great broadcast test tool till the OS change...Will do microphone levels into 600 Ohms.
swedishpassionsswedishpassions

Doesnt work in IOS 5

Worked great till i upgraded to IOS5
BrandywineAVBrandywineAV

Need manual!

Love the app. But I don't see where the blog is? I can't figure out how to make source "B" be on right channel while source "A" is on left...
HASiJ2HASiJ2

OK up to 8 kHz

Above 8 kHz the audio starts cutting out. Nothing above 9 kHz.
Steve102Steve102
See 2 more reviews

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FAQ

What audio test tones can Diapason generate?

Diapason can generate sine waves, square waves, triangle waves, sawtooth waves, white noise, and pink noise. It also offers narrow band noise for specific testing needs.

How many audio sources can be combined in Diapason?

You can combine up to 4 independent audio sources within Diapason. Each source can be sent to the left and/or right speaker, with individual phase switches for each channel.

Does Diapason have ads?

No, Diapason is ad-free. It is a paid application, and users can enjoy its full functionality without interruptions from advertisements.

What is the price of Diapason?

Diapason is available for a one-time purchase of $1.99. This grants you access to all its features without any further in-app purchases or subscriptions.

What devices is Diapason compatible with?

Diapason is compatible with iPhone, iPad, and iPod devices. It requires iOS 4+ and is optimized for various screen sizes.

How often is Diapason updated?

The latest version of Diapason is 2.8, last updated on November 2, 2025. Updates typically include feature enhancements and bug fixes to ensure reliable performance.

What is the age rating for Diapason?

Diapason has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content present.

Can I monitor the generated audio signal with Diapason?

Yes, Diapason includes a rough waveform viewer at the bottom of the first tab to monitor the generated signal. It also indicates the output RMS power and any clipping that occurs.